ULAN BATOR, July 15, 2016 (Xinhua) -- Chinese Premier Li Keqiang and other leaders attending the 11th Asia-Europe Meeting (ASEM) Summit watch Naadam performance, which is a traditional event featuring Mongolian folk dance, horse-racing, wrestling and archery, in Ulan Bator, Mongolia, July 15, 2016. The ASEM summit opened here on Friday.(Xinhua/Wang Ye)